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llvm-project/lld/test/ELF/lto/wrap-1.ll

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Symbols re-defined with -wrap and -defsym need to be excluded from inter- procedural optimizations to prevent dropping symbols and allow the linker to process re-directs. PR33145: --wrap doesn't work with lto. Differential Revision: https://reviews.llvm.org/D33621 llvm-svn: 304719
2017-06-06 00:24:25 +08:00
; REQUIRES: x86
[LTO] Add a test for ThinLTO + --wrap. We should get this right after r307303. Differential Revision: https://reviews.llvm.org/D35126 llvm-svn: 307410
2017-07-08 00:33:01 +08:00
; LTO
Symbols re-defined with -wrap and -defsym need to be excluded from inter- procedural optimizations to prevent dropping symbols and allow the linker to process re-directs. PR33145: --wrap doesn't work with lto. Differential Revision: https://reviews.llvm.org/D33621 llvm-svn: 304719
2017-06-06 00:24:25 +08:00
; RUN: llvm-as %s -o %t.o
; RUN: ld.lld %t.o -o %t.out -wrap=bar -save-temps
[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651
2019-05-01 13:49:01 +08:00
; RUN: llvm-readobj --symbols %t.out | FileCheck %s
Symbols re-defined with -wrap and -defsym need to be excluded from inter- procedural optimizations to prevent dropping symbols and allow the linker to process re-directs. PR33145: --wrap doesn't work with lto. Differential Revision: https://reviews.llvm.org/D33621 llvm-svn: 304719
2017-06-06 00:24:25 +08:00
; RUN: cat %t.out.resolution.txt | FileCheck -check-prefix=RESOLS %s
[LTO] Add a test for ThinLTO + --wrap. We should get this right after r307303. Differential Revision: https://reviews.llvm.org/D35126 llvm-svn: 307410
2017-07-08 00:33:01 +08:00
; ThinLTO
; RUN: opt -module-summary %s -o %t.o
; RUN: ld.lld %t.o -o %t.out -wrap=bar -save-temps
[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651
2019-05-01 13:49:01 +08:00
; RUN: llvm-readobj --symbols %t.out | FileCheck %s
[LTO] Add a test for ThinLTO + --wrap. We should get this right after r307303. Differential Revision: https://reviews.llvm.org/D35126 llvm-svn: 307410
2017-07-08 00:33:01 +08:00
; RUN: cat %t.out.resolution.txt | FileCheck -check-prefix=RESOLS %s
Symbols re-defined with -wrap and -defsym need to be excluded from inter- procedural optimizations to prevent dropping symbols and allow the linker to process re-directs. PR33145: --wrap doesn't work with lto. Differential Revision: https://reviews.llvm.org/D33621 llvm-svn: 304719
2017-06-06 00:24:25 +08:00
; CHECK: Name: __wrap_bar
; CHECK-NEXT: Value:
; CHECK-NEXT: Size:
; CHECK-NEXT: Binding: Global
; CHECK-NEXT: Type: Function
[ELF] --wrap: don't unnecessarily expose __real_ The routing rules are: sym -> __wrap_sym __real_sym -> sym __wrap_sym and sym are routing targets, so they need to be exposed to the symbol table. __real_sym is not and can be eliminated if not used by regular object.
2020-10-01 11:09:25 +08:00
; Make sure that the 'r' (linker redefined) bit is set for bar and __real_bar
; in the resolutions file. The calls to bar and __real_bar will be routed to
; __wrap_bar and bar, respectively. So they cannot be inlined.
; RESOLS: ,bar,xr{{$}}
; RESOLS: ,__wrap_bar,plx{{$}}
; RESOLS: ,__real_bar,plr{{$}}
Symbols re-defined with -wrap and -defsym need to be excluded from inter- procedural optimizations to prevent dropping symbols and allow the linker to process re-directs. PR33145: --wrap doesn't work with lto. Differential Revision: https://reviews.llvm.org/D33621 llvm-svn: 304719
2017-06-06 00:24:25 +08:00
Reland "Change the X86 datalayout to add three address spaces for 32 bit signed, 32 bit unsigned, and 64 bit pointers." This reverts 57076d3199fc2b0af4a3736b7749dd5462cacda5. Original review at https://reviews.llvm.org/D64931. Review for added fix at https://reviews.llvm.org/D66843. llvm-svn: 371568
2019-09-11 07:15:38 +08:00
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
Symbols re-defined with -wrap and -defsym need to be excluded from inter- procedural optimizations to prevent dropping symbols and allow the linker to process re-directs. PR33145: --wrap doesn't work with lto. Differential Revision: https://reviews.llvm.org/D33621 llvm-svn: 304719
2017-06-06 00:24:25 +08:00
target triple = "x86_64-unknown-linux-gnu"
declare void @bar()
define void @_start() {
call void @bar()
ret void
}
define void @__wrap_bar() {
ret void
}
define void @__real_bar() {
ret void
}